LISA O'CONNOR / AFP via Getty Images In one of the biggest unenforced errors in the history of the AI industry, Nvidia CEO Jensen Huang admitted on Sunday that he had cheated on his wife with an alleged Chinese spy. The embarrassing news sent shares of the AI chipmaker — a bellwether for an economy overindexed on AI — plummeting, with one analyst estimating that parting ways with Huang could wipe out almost 30 percent of the company’s value. Nvidia’s board